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Preparation method of silicate cement clinker

A Portland cement and clinker technology, applied in clinker production, cement production and other directions, can solve the problems of low strength growth rate, low actual content of silicate minerals, low early strength, etc. Adverse effects, effect of reducing energy consumption

Inactive Publication Date: 2007-07-18
WUHU DIGANG JINXIN CEMENT POWDER
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Problems solved by technology

[0002] Most of the Portland cement clinker in my country is produced with low-silicon and high-iron ingredients. Although the appearance of the clinker is good-looking, the actual content of silicate minerals is relatively small due to the low silica rate, and the high content of fcao results in early strength. Not high, 28-day strength growth rate is also low

Method used

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  • Preparation method of silicate cement clinker

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Embodiment 1

[0022] Embodiment 1: Take 7.0 tons of limestone, 0.5 tons of clay, 0.25 tons of shale, 0.15 tons of fluorite, 0.35 tons of phosphogypsum, and 1 ton of coal for batching, mix and grind until the residue on the 0.1 mm square hole sieve does not exceed 8%. Raw meal powder, after fully stirring the raw meal powder, put it into the ball tray, add 1.2 tons of water to make balls, the particle size of the balls is 5-12mm, and the weight of the balls is 500-600g / piece, and then put the balls Put it into the kiln for calcination, the temperature of the kiln is controlled at 1500-1600°C, the required residence time in the high hysteresis is 15 minutes, and the cement clinker is obtained after cooling the pellets.

Embodiment 2

[0023] Example 2: Except for 7.3 tons of limestone, 0.52 tons of clay, 0.28 tons of shale, 0.18 tons of fluorite, 0.38 tons of phosphogypsum, and 1.2 tons of coal, the rest are the same as in Example 1.

Embodiment 3

[0024] Embodiment 3: Except for 7.5 tons of limestone, 0.58 tons of clay, 0.32 tons of shale, 0.22 tons of fluorite, 0.4 tons of phosphogypsum, and 1.5 tons of coal, the rest is the same as that of Embodiment 1.

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Abstract

This invention relates to a silicate cement preparation. A: according to weight, it includes the following raw materials: limestone 70-80 shares, clay 5-6 shares, shale 2.5-3.5, 1.5-2.5 fluorite, phos-gypsum 3.5-4.5, coal 10-15. B: mix and grind the materials described in (A), add water into the ball, and then the ball into the kiln for burning, cooling to gain cement. This invention compares with existing technologies, use industrial waste phos-gypsum as ingredients of compound mineralizer to solve problem of environment pollution caused by a large number of phos-gypsum, change phos-gypsum waste to treasure. Meanwhile, through increase content of compound mineralizer, reduce the energy consumption, has very great significance at today.

Description

technical field [0001] The invention belongs to the technical field of Portland cement clinker preparation method, in particular to the technical field of high-silicon and low-iron Portland cement clinker. Background technique [0002] Most of the Portland cement clinker in my country is produced with low-silicon and high-iron ingredients. Although the appearance of the clinker is good-looking, the actual content of silicate minerals is relatively small due to the low silicon rate, and the high content of fcao results in early strength. Not high, and the 28-day strength growth rate is also low. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for preparing Portland cement clinker with high silicon and low iron. [0004] The technical solution of the present invention to solve the technical problem is: A: comprise the component preparation raw material of following weight ratio: [0005] Limestone 70-80 ...

Claims

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Application Information

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IPC IPC(8): C04B7/06C04B7/36
CPCC04B7/36Y02P40/121
Inventor 姚小牛贺桂房朱家旺
Owner WUHU DIGANG JINXIN CEMENT POWDER
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